Reduced graphene oxide (r-GO) anchored bismuth oxide (Bi2O3) nanocomposite material: Fabrication, characterization, photocatalytic degradation of rhodamine B (RB) dye and phytotoxicity study

IF 5.9 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2026-04-01 Epub Date: 2026-02-02 DOI:10.1016/j.inoche.2026.116283

Rajesh Chandu Waghmare , Raju Shivaji Ingale , Pratibha Gopalrao Raundal , Purvesh Vijay Sonawane , Anjali Deepak More , Prashant Bhimrao Koli

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Abstract

The present research work deals with the fabrication of bismuth oxide (Bi₂O₃) nanomaterials by sol gel citrate method and fabrication of reduced graphene oxide (r-GO) by Hammers method using waste dry electric batteries. The nanocomposite of Bi₂O₃ and graphene oxide was prepared cost-effective heat and beat method (Ball Grinding method) followed by ultrasonication and calcination. The prepared materials Bi₂O_3, r-GO and r-GO Bi₂O₃ were Characterized by X-ray diffraction (XRD) technique to investigate the structural parameters. The average crystallite size was calculated from Debye Scherrer formula, the estimated size for Bi₂O_3, r-GO and r-GO Bi₂O₃ was 18.20 nm, 14.30 nm and 21.56 nm respectively. The scanning electron microscopy (SEM) was utilized for morphological parameters of the prepared materials like surface, texture, porosity and dimensions of nanomaterials. The energy dispersive spectroscopy (EDS) technique was utilized to investigate the elemental composition. The lattice parameters and polycrystallinity was confirmed from transmission electron microscopy (TEM) analysis. While the band gap of the fabricated materials was confirmed from ultraviolet diffuse reflectance spectroscopy (UV-DRS). Additionally, the materials were further characterized by photoluminescence (PL) spectroscopy for optical properties such as band gap investigations. The surface area of both the catalyst was investigated by Brunauer-Emmett-Teller (BET) adsorption isotherm. The fabricated materials Bi₂O₃ and r-GO Bi₂O₃ nanocomposite were investigated for the photocatalytic dye degradation study of Rhodamine B (RB) dye and phytotoxicity study. The various parameters of the dye degradation such as catalyst dose, effect of pH, effect of dye concentration, radical scavenging study, contact time and comparative study was investigated for RB dye. The r-GO- Bi₂O₃ nanocomposite has a superior rate of dye degradation, and it degrades the 98.23% of RB dye in 70 min.

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还原氧化石墨烯（r-GO）锚定氧化铋（Bi2O3）纳米复合材料：制备、表征、光催化降解罗丹明B （RB）染料及植物毒性研究

本文研究了溶胶凝胶柠檬酸法制备氧化铋（Bi2O3）纳米材料和用废干电池制备还原性氧化石墨烯（r-GO）的方法。采用高温焙烧法（球磨法）制备了Bi2O3与氧化石墨烯的纳米复合材料。采用x射线衍射（XRD）技术对制备的Bi2O3、r-GO和r-GO Bi2O3进行表征，研究其结构参数。根据Debye - Scherrer公式计算，Bi2O3、r-GO和r-GO Bi2O3的平均晶粒尺寸分别为18.20 nm、14.30 nm和21.56 nm。利用扫描电子显微镜（SEM）对制备的纳米材料的表面、织构、孔隙率和尺寸等形貌参数进行了表征。利用能谱（EDS）技术对其元素组成进行了分析。通过透射电镜（TEM）分析证实了其晶格参数和多晶性。通过紫外漫反射光谱（UV-DRS）确定了材料的带隙。此外，通过光致发光（PL）光谱进一步表征了材料的光学性质，如带隙研究。采用bruauer - emmet - teller （BET）吸附等温线研究了两种催化剂的比表面积。研究了制备的Bi2O3和r-GO纳米复合材料对罗丹明B （RB）染料的光催化降解和植物毒性研究。考察了催化剂用量、pH值、染料浓度、自由基清除研究、接触时间和对比研究等对RB染料降解的影响。r-GO- Bi2O3纳米复合材料具有优异的染料降解率，在70 min内可降解98.23%的RB染料。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.